Category Archives: astronomy and cosmology

Reader’s wildlife photo

Remember that on this website, astronomy and nature photos count as “wildlife”. This is a photo from reader Tim Anderson in Australia, whose words are indented: This is a picture of the Trifid Nebula or NGC6514. Its name has nothing to do with the John Wyndham novel “Day of the Triffids”, but instead derives from […]

Livestream of black-hole announcement at 9 a.m. EDT (1300 GMT)

As I mentioned yesterday, today is the day that the Event Horizon Telescope team will announce “a major discovery”, which will almost certainly include the first photographic image of a black hole. The announcement will be livestreamed at 9 a.m. Eastern Time in the US or 1300 GMT. Sadly, I’ll be on my way to […]

First black hole photo should be released tomorrow; explanatory video below

Reader Bryan called my attention to the fact that in exactly 24 hours, a photo of a black hole (if there is indeed such a photo), will be released for the first time. The project is described in this New York Times article, which gives this context: At 9 a.m. Eastern Time on Wednesday April […]

Readers’ wildlife photos

Remember to send in your good wildlife photos. The tank doesn’t fill itself! We have two contributors today, the first being Tim Anderson from Oz, who sent us both an astronomy photo and an animal photo. First the critters, one of the rare moth species that migrate. A pair of migrating bogong moths (Agrotis infusa) […]

Dec. 24: Earthrise: First seen from space 50 years ago today.

Reader Jon sent me the link to this NASA video of “Earthrise”, first seen on this day in 1968. I’ll just put up Jon’s comment and the reconstructed video, based on both photos and analyses of where the spacecraft was when Earthrise was seen. In fact, I’m posting this at the exact time when Earthrise […]

Readers’ wildlife photos

Today we have some photos from reader Don McCrady, whose work hasn’t appeared here for a while. These are some of 5,000 photos he took on a recent trip to Namibia, and we’re promised more. Don’s captions are indented. Here are a few shots of some of the wildlife we could see at the Erindi […]

Readers’ wildlife photos (and video)

I just got an email from reader Rick Longworth about Chicago and Mars. His notes: I thought of you, Jerry, while flying over your amazing city. Flying from Houston, TX to Grand Rapids, MI, we overflew Chicago and saw the Red Planet in the eastern sky.  Of all the millions of people down there, how […]

Eclipse coming: get your glasses now

I’m sure, if you’re in the U.S., you’ll know all about the eclipse next Monday, which reaches totality between 10:30 am and 3;30 pm, depending on where you are. If you want to see what the eclipse will look like from where you are (enter your ZIP code), go to this site. This is what […]

Jupiter and beyond the infinite

by Matthew Cobb Watch this on full screen with your speakers turned up and your mind-expanding drug of choice to hand. This animation by Seán Doran uses the stunning images recently sent back by the Juno probe. Nobody was expecting the degree of complexity in Jupiter’s multiple storm systems – it really is an extraordinary […]

Google Doodle celebrates discovery of exoplanets

An “exoplanet” is a planet outside the solar system, and today’s Google Doodle, remarkably timely (and cute), celebrates yesterday’s announcement (published in Nature; I haven’t yet read the paper) of seven exoplanets found orbiting around a single star called “Trappist-1”, forty light years away:   As NASA reports, there are seven planets, all roughly the size of […]